- #1

- 678

- 4

## Homework Statement

Is the question wrong ?

## Homework Equations

## The Attempt at a Solution

I found that the number of dimension = 6 , primary dimensionof velocity is L / T , which is 2 , number of repeating variable = 2 , so , there are 6-2 = 4 pi group , why the question only gt 3 pi group ?

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